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Round|Lab Grown|IGI

1.81ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG778645789

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778645789

Diamond specifications and retailer prices

From $3,879 NZD
$2,186 USD
As of October 29, 2026
Save $4,393 NZD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $15,726 NZD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 1.81ct lab-grown round diamond

This 1.81ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG778645789 or 778645789. Listed at 21 retailers as of October 29, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778645789
Dimensions7.83 × 7.87 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.83 mm7.87 mm1.81 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778645789
Side View
Table 57.0%Crown 33.4°Girdle: MediumPavilion 40.4°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $7,877 NZD|Low: $3,724 NZD|High: $15,056 NZD|Avg: $7,238 NZD|+7.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 16$3,879 NZD
Retailer 7$4,219 NZD
Retailer 11$4,342 NZD
Retailer 3$4,500 NZD
Retailer 6$4,611 NZD
Retailer 14$4,791 NZD
Retailer 9$6,169 NZD
Retailer 8$6,185 NZD
Retailer 15$6,423 NZD
Retailer 2$6,432 NZD
Retailer 1$7,877 NZD
Retailer 10$8,272 NZD
Retailer 13$11,409 NZD
Retailer 4$12,014 NZD
Retailer 12$12,272 NZD
Retailer 5$15,056 NZD

43 data points across 16 retailers

21 retailers$3,879 NZD to $8,272 NZD

B+
Cheapest Retailer
-
$3,879 NZD
$2,186 USD
B+
Retailer 2
-
$4,219 NZD
$2,378 USD
View
B+
Retailer 3
-
$4,342 NZD
$2,447 USD
View
Final sale: no returns
Retailer 4
-
$4,500 NZD
$2,536 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$4,500 NZD
$2,536 USD
View
B+
Retailer 6
-
$4,611 NZD
$2,599 USD
View
B+
Retailer 7
-
$4,791 NZD
$2,700 USD
View
B
Retailer 8
-
$5,201 NZD
HK$22,900 HKD
View
B+
Retailer 9
-
$6,169 NZD
£2,738 GBP
View
B
Retailer 10
-
$6,185 NZD
$3,486 USD
View
B
Retailer 11
-
$6,423 NZD
$3,620 USD
View
B
Retailer 12
-
$6,432 NZD
$3,625 USD
View
B
Retailer 13
-
$7,877 NZD
€4,228 EUR
View
B
Retailer 14
-
$8,272 NZD
ZAR 75,313 ZAR
View
Retailer 15
-
$11,409 NZD
$6,430 USD
View
Price under review
Retailer 16
-
$12,014 NZD
$6,771 USD
View
Price under review
Retailer 17
-
$12,272 NZD
£5,446 GBP
View
Price under review
Retailer 18
-
$13,363 NZD
$7,531 USD
View
Price under review
Retailer 19
-
$15,056 NZD
SGD 11,467 SGD
View
Price under review
Most Expensive
Taylor and Hart
YDU2Y3X · Oct 30
$15,726 NZD
$8,863 USD
View
Price under review
19 more retailers have this diamond
Prices start from $3,879 NZDSave up to $4,393 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.81ct Round
$3,879 NZD